Android XML Parsing Using DOM Parser

I have below xml file.Now Get Data from xml file using DOM Parser.

<?xml version="1.0" encoding="utf-8"?>

<rss>

<item>

<id>1</id>

<title>Image 1</title>

<desc>Whether it's made with soy byproducts, milk, or clay, these natural wall color options are healthy for your home.</desc>

<pubDate>22/03/2012</pubDate>

<link>https://www.dropbox.com/s/jpqsvse4xx9qt96/image1.jpg?dl=1</link>

</item>

<item>

<id>2</id>

<title>Image 2</title>

<desc></desc>

<pubDate>23/03/2012</pubDate>

<link>https://www.dropbox.com/s/n29704f65zigty7/image2.jpeg?dl=1</link>

</item>

<item>

<id>3</id>

<title>Image 3</title>

<desc></desc>

<pubDate>27/03/2012</pubDate>

<link>https://www.dropbox.com/s/1l3qoojbi4drqsd/image3.jpeg?dl=1</link>

</item>

<item>

<id>4</id>

<title>Image 4</title>

<desc>Natural paints are generally more expensive than conventional paints and aren’t always widely available, but can be ordered online.</desc>

<pubDate>29/03/2012</pubDate>

<link>https://www.dropbox.com/s/f9n3u3d5okk9x2v/image4.jpg?dl=1</link>

</item>

</rss>

now above xml file have item tag is Nodelist.and child nodes are id,title,desc,pubdate,link.

NodeList nList = doc.getElementsByTagName("item");

you can get length of nodelist using getLength.and retrieve one by one child nodes.


for (int temp = 0; temp < nList.getLength(); temp++) {
Node nNode = nList.item(temp);
           Element eElement = (Element) nNode;
 }


now using  eElement you can getvalue of nodes

private static String getTagValue(String sTag, Element eElement) {

NodeList nList = eElement.getElementsByTagName(sTag).item(0) .getChildNodes(); if (eElement.getNodeType() == Node.ELEMENT_NODE) {

if (nList != null && nList.getLength() > 0) {

            return nList.item(0).getNodeValue();  

}

} return null; 

  }

DOMParser.java 


package com.samir;


import java.net.URL;
import java.util.ArrayList;
import java.util.List;
import javax.xml.parsers.DocumentBuilder;
import javax.xml.parsers.DocumentBuilderFactory;
import org.w3c.dom.Document;
import org.w3c.dom.Element;
import org.w3c.dom.Node;
import org.w3c.dom.NodeList;
public class DOMParser {
Bean objItem;
List<Bean> listArray;


public List<Bean> getData(String url) {


try {
listArray = new ArrayList<Bean>();
DocumentBuilderFactory dbf = DocumentBuilderFactory.newInstance();
DocumentBuilder db = dbf.newDocumentBuilder();
Document doc = db.parse(new URL(url).openStream());
doc.getDocumentElement().normalize();


NodeList nList = doc.getElementsByTagName("item");
for (int temp = 0; temp < nList.getLength(); temp++) {


Node nNode = nList.item(temp);
if (nNode.getNodeType() == Node.ELEMENT_NODE) {
Element eElement = (Element) nNode;
objItem = new Bean();
objItem.setId(getTagValue("id", eElement));
objItem.setTitle(getTagValue("title", eElement));
objItem.setDesc(getTagValue("desc", eElement));
objItem.setPubDate(getTagValue("pubDate", eElement));
objItem.setLink(getTagValue("link", eElement));
listArray.add(objItem);
}
}
} catch (Exception e) {
e.printStackTrace();
}


return listArray;
}
private static String getTagValue(String sTag, Element eElement) {
NodeList nList = eElement.getElementsByTagName(sTag).item(0)
.getChildNodes();
if (eElement.getNodeType() == Node.ELEMENT_NODE) {
if (nList != null && nList.getLength() > 0) {
return nList.item(0).getNodeValue();
}
}
return null;
}
}

MainActivity.java

package com.samir;

import java.util.List;

import android.app.Activity;

import android.app.ProgressDialog;

import android.content.Context;

import android.net.ConnectivityManager;

import android.net.NetworkInfo;

import android.os.AsyncTask;

import android.os.Bundle;

import android.view.View;

import android.widget.TextView;

import android.widget.Toast;

public class MainActivity extends Activity {

private ProgressDialog pDialog;

private String rssFeed = "https://www.dropbox.com/s/t4o5wo6gdcnhgj8/imagelistview.xml?dl=1";

private TextView textview;

private List<Bean> itemsList;

@Override

protected void onCreate(Bundle savedInstanceState) {

super.onCreate(savedInstanceState);

setContentView(R.layout.main);

textview = (TextView) findViewById(R.id.textView1);

}

public void doParsing(View v) {

if (isNetworkAvailable()) {

textview.setText("Loading...Please wait...");

new AsyncData().execute(rssFeed);

} else {

showToast("No Network Connection!!!");

}

}

class AsyncData extends AsyncTask<String, Void, Void> {

@Override

protected void onPreExecute() {

pDialog = new ProgressDialog(MainActivity.this);

pDialog.setTitle("Loading....");

pDialog.setMessage("Please wait...");

pDialog.show();

super.onPreExecute();

}

@Override

protected Void doInBackground(String... params) {

itemsList = new DOMParser().getData(params[0]);

return null;

}

@Override

protected void onPostExecute(Void result) {

super.onPostExecute(result);

textview.setText("Done!!! See Your Logcat...");

if (pDialog != null && pDialog.isShowing()) {

pDialog.dismiss();

}

if (null != itemsList && itemsList.size() != 0) {

for (int index = 0; index < itemsList.size(); index++) {

Bean objBean = itemsList.get(index);

System.out.println(">>>>>>>>>>>>>>>" + index);

System.out.println("ID :: " + objBean.getId());

System.out.println("TITLE :: " + objBean.getTitle());

System.out.println("DESC :: " + objBean.getDesc());

System.out.println("PUBDATE :: " + objBean.getPubDate());

System.out.println("LINK :: " + objBean.getLink());

}

}

}

}

public void showToast(String msg) {

Toast.makeText(MainActivity.this, msg, Toast.LENGTH_LONG).show();

}

public boolean isNetworkAvailable() {

ConnectivityManager connectivity = (ConnectivityManager) getSystemService(Context.CONNECTIVITY_SERVICE);

if (connectivity == null) {

return false;

} else {

NetworkInfo[] info = connectivity.getAllNetworkInfo();

if (info != null) {

for (int i = 0; i < info.length; i++) {

if (info[i].getState() == NetworkInfo.State.CONNECTED) {

return true;

}

}

}

}

return false;

}

}

Bean.java


package com.samir;
public class Bean {
private String id;
private String title;
private String desc;
private String pubDate;
private String link;
public String getId() {
return id;
}
public void setId(String id) {
this.id = id;
}
public String getTitle() {
return title;
}
public void setTitle(String title) {
this.title = title;
}
public String getDesc() {
return desc;
}
public void setDesc(String desc) {
this.desc = desc;
}
public String getPubDate() {
return pubDate;
}
public void setPubDate(String pubDate) {
this.pubDate = pubDate;
}
public String getLink() {
return link;
}
public void setLink(String link) {
this.link = link;
}
}


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